## Xalan-C++ API Documentation

### The Xalan C++ XSLT Processor Version 1.7

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# XalanTranscodingServices.hpp

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    00001 /*
    00002  * The Apache Software License, Version 1.1
    00003  *
    00004  *
    00005  * Copyright (c) 1999-2004 The Apache Software Foundation.  All rights
    00006  * reserved.
    00007  *
    00008  * Redistribution and use in source and binary forms, with or without
    00009  * modification, are permitted provided that the following conditions
    00010  * are met:
    00011  *
    00012  * 1. Redistributions of source code must retain the above copyright
    00013  *    notice, this list of conditions and the following disclaimer.
    00014  *
    00015  * 2. Redistributions in binary form must reproduce the above copyright
    00016  *    notice, this list of conditions and the following disclaimer in
    00017  *    the documentation and/or other materials provided with the
    00018  *    distribution.
    00019  *
    00020  * 3. The end-user documentation included with the redistribution,
    00021  *    if any, must include the following acknowledgment:
    00022  *       "This product includes software developed by the
    00023  *        Apache Software Foundation (http://www.apache.org/)."
    00024  *    Alternately, this acknowledgment may appear in the software itself,
    00025  *    if and wherever such third-party acknowledgments normally appear.
    00026  *
    00027  * 4. The names "Xalan" and "Apache Software Foundation" must
    00028  *    not be used to endorse or promote products derived from this
    00029  *    software without prior written permission. For written
    00030  *    permission, please contact apache@apache.org.
    00031  *
    00032  * 5. Products derived from this software may not be called "Apache",
    00033  *    nor may "Apache" appear in their name, without prior written
    00034  *    permission of the Apache Software Foundation.
    00035  *
    00036  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
    00037  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
    00038  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    00039  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
    00040  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    00041  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    00042  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
    00043  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    00044  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
    00045  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
    00046  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    00047  * SUCH DAMAGE.
    00048  * ====================================================================
    00049  *
    00050  * This software consists of voluntary contributions made by many
    00051  * individuals on behalf of the Apache Software Foundation and was
    00052  * originally based on software copyright (c) 1999, International
    00053  * Business Machines, Inc., http://www.ibm.com.  For more
    00054  * information on the Apache Software Foundation, please see
    00055  * <http://www.apache.org/>.
    00056  */
    00057 #if !defined(XALANTRANSCODINGSERVICES_HEADER_GUARD_1357924680)
    00058 #define XALANTRANSCODINGSERVICES_HEADER_GUARD_1357924680
    00059
    00060
    00061
    00062 // Base include file.  Must be first.
    00063 #include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp>
    00064
    00065
    00066
    00067 #include <cassert>
    00068
    00069
    00070
    00071 #include <xalanc/PlatformSupport/DOMStringHelper.hpp>
    00072 #include <xalanc/PlatformSupport/XSLException.hpp>
    00073
    00074
    00075
    00076 XALAN_CPP_NAMESPACE_BEGIN
    00077
    00078
    00079
    00080 class XalanOutputTranscoder;
    00081
    00082
    00083
    00084 class XALAN_PLATFORMSUPPORT_EXPORT XalanTranscodingServices
    00085 {
    00086 public:
    00087
    00091     static void
    00092     initialize();
    00093
    00097     static void
    00098     terminate();
    00099
    00100     typedef unsigned char   XalanXMLByte;
    00101
    00102     static size_t
    00103     length(const XalanXMLByte*  theBytes)
    00104     {
    00105         assert(theBytes != 0);
    00106
    00107         const XalanXMLByte*     theCurrentByte = theBytes;
    00108
    00109         while(*theCurrentByte != 0)
    00110         {
    00111             ++theCurrentByte;
    00112         }
    00113
    00114         return theCurrentByte - theBytes;
    00115     }
    00116
    00117     enum eCode
    00118     {
    00119         OK,
    00120         UnsupportedEncoding,
    00121         InternalFailure,
    00122         SupportFilesNotFound
    00123     };
    00124
    00125
    00135     static XalanOutputTranscoder*
    00136     makeNewTranscoder(
    00137             const XalanDOMString&   theEncodingName,
    00138             eCode&                  theResult,
    00139             size_t                  theBlockSize);
    00140
    00146     static void
    00147     destroyTranscoder(XalanOutputTranscoder*    theTranscoder);
    00148
    00155     static bool
    00156     encodingIsUTF8(const XalanDOMChar*      theEncodingName);
    00157
    00164     static bool
    00165     encodingIsUTF8(const XalanDOMString&    theEncodingName);
    00166
    00173     static bool
    00174     encodingIsUTF16(const XalanDOMChar*     theEncodingName);
    00175
    00182     static bool
    00183     encodingIsUTF16(const XalanDOMString&   theEncodingName);
    00184
    00191     static bool
    00192     encodingIsUTF32(const XalanDOMChar*     theEncodingName);
    00193
    00200     static bool
    00201     encodingIsUTF32(const XalanDOMString&   theEncodingName);
    00213     static const XalanXMLByte*
    00214     getStreamProlog(const XalanDOMString&   theEncodingName);
    00215
    00222     static XalanDOMChar
    00223     getMaximumCharacterValue(const XalanDOMString&  theEncoding);
    00224
    00233     static XalanDOMChar
    00234     getMaximumCharacterValue();
    00235
    00243     static bool
    00244     getBytesEqualChars(const XalanDOMString&    theEncoding);
    00245
    00246     static bool
    00247     canTranscodeToLocalCodePage(unsigned int    theChar)
    00248     {
    00249         // Yuck!! See getMaximumCharacterValue() for more details.
    00250         return theChar <= 0x7fu ? true : false;
    00251     }
    00252
    00253     static const XalanDOMChar   s_utf8String[];
    00254
    00255     static const XalanDOMChar   s_utf16String[];
    00256
    00257     static const XalanDOMChar   s_utf16LEString[];
    00258
    00259     static const XalanDOMChar   s_utf16BEString[];
    00260
    00261     static const XalanDOMChar   s_utf32String[];
    00262
    00263     static const XalanDOMChar   s_asciiString[];
    00264
    00265     static const XalanDOMChar   s_usASCIIString[];
    00266
    00267     static const XalanDOMChar   s_windows1250String[];
    00268
    00269     static const XalanDOMChar   s_iso88591String[];
    00270
    00271     static const XalanDOMChar   s_shiftJISString[];
    00272
    00273
    00274     class XALAN_PLATFORMSUPPORT_EXPORT UnrepresentableCharacterException : public XSLException
    00275     {
    00276     public:
    00277
    00278         UnrepresentableCharacterException(
    00279             unsigned int            theCharacter,
    00280             const XalanDOMString&   theEncoding);
    00281
    00282         virtual
    00283         ~UnrepresentableCharacterException();
    00284
    00285         unsigned int
    00286         getCharacter() const
    00287         {
    00288             return m_badCharacter;
    00289         }
    00290
    00291         const XalanDOMString&
    00292         getEncoding() const
    00293         {
    00294             return m_encoding;
    00295         }
    00296
    00297     private:
    00298
    00299         const unsigned int      m_badCharacter;
    00300
    00301         const XalanDOMString    m_encoding;
    00302     };
    00303
    00304 private:
    00305
    00306     static const XalanXMLByte   s_dummyByteOrderMark[];
    00307     static const XalanXMLByte   s_UTF8ByteOrderMark[];
    00308     static const XalanDOMChar   s_UTF16ByteOrderMark[];
    00309 };
    00310
    00311
    00312
    00313 class XALAN_PLATFORMSUPPORT_EXPORT XalanOutputTranscoder
    00314 {
    00315 public:
    00316
    00317     typedef XalanTranscodingServices::XalanXMLByte  XalanXMLByte;
    00318     typedef XalanTranscodingServices::eCode         eCode;
    00319
    00320     explicit
    00321     XalanOutputTranscoder();
    00322
    00323     virtual
    00324     ~XalanOutputTranscoder();
    00325
    00339     virtual eCode
    00340     transcode(
    00341             const XalanDOMChar*     theSourceData,
    00342             size_t                  theSourceCount,
    00343             XalanXMLByte*           theTarget,
    00344             size_t                  theTargetSize,
    00345             size_t&                 theSourceCharsTranscoded,
    00346             size_t&                 theTargetBytesUsed) = 0;
    00347
    00362     virtual eCode
    00363     transcode(
    00364             const XalanXMLByte*     theSourceData,
    00365             size_t                  theSourceCount,
    00366             XalanDOMChar*           theTarget,
    00367             size_t                  theTargetSize,
    00368             size_t&                 theSourceCharsTranscoded,
    00369             size_t&                 theTargetBytesUsed,
    00370             unsigned char*          theCharSizes) = 0;
    00371
    00372     virtual bool
    00373     canTranscodeTo(unsigned int     theChar) const = 0;
    00374
    00375 private:
    00376
    00377     // Not implemented...
    00378     XalanOutputTranscoder(const XalanOutputTranscoder&  theSource);
    00379
    00380     bool
    00381     operator==(const XalanOutputTranscoder& theRHS) const;
    00382
    00383     XalanOutputTranscoder&
    00384     operator=(const XalanOutputTranscoder&  theRHS);
    00385 };
    00386
    00387
    00388
    00389 XALAN_CPP_NAMESPACE_END
    00390
    00391
    00392
    00393 #endif  // XALANTRANSCODINGSERVICES_HEADER_GUARD_1357924680

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Xalan-C++ XSLT Processor Version 1.7 Copyright © 1999-2004 The Apache Software Foundation. All Rights Reserved.